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Proceedings Paper

Optical viscosity sensor
Author(s): Cheng-Ling Chang; Juliette Peyroux; Alex Perez; Chi-Leung Tsui; Wei-Chih Wang
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Paper Abstract

Viscosity measurement by bend loss of fiber is presented. The sensing principle makes use of the damping characteristic of a vibrating optical fiber probe with fix-free end configuration. By measuring the displacement of the fiber probe, the viscosity can be determined by matching the probe's displacement with the displacement built in the database obtained by either experimental method or Finite element calculation. Experimental results are presented by measuring the sucrose and glycerol solutions of different concentrations with a viscosity varying from 1 to 15 cP. Stokes' flow assumption is utilized to attenuate the mass density effect and simplify the viscosity measurement.

Paper Details

Date Published: 8 April 2009
PDF: 8 pages
Proc. SPIE 7295, Health Monitoring of Structural and Biological Systems 2009, 72951Z (8 April 2009); doi: 10.1117/12.816544
Show Author Affiliations
Cheng-Ling Chang, Univ. of Washington (United States)
Juliette Peyroux, Univ. of Washington (United States)
Alex Perez, Univ. of Washington (United States)
Chi-Leung Tsui, Univ. of Washington (United States)
Wei-Chih Wang, Univ. of Washington (United States)


Published in SPIE Proceedings Vol. 7295:
Health Monitoring of Structural and Biological Systems 2009
Tribikram Kundu, Editor(s)

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